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1. US20120322651 - PROCESS FOR PREPARING METHANOL

Office
United States of America
Application Number 13576439
Application Date 28.01.2011
Publication Number 20120322651
Publication Date 20.12.2012
Publication Kind A1
IPC
C07C 29/152
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
15by reduction of oxides of carbon exclusively
151with hydrogen or hydrogen-containing gases
152characterised by the reactor used
C07C 29/154
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
15by reduction of oxides of carbon exclusively
151with hydrogen or hydrogen-containing gases
153characterised by the catalyst used
154containing copper, silver, gold, or compounds thereof
B23P 23/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
23Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
B01J 37/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
CPC
B01J 8/0457
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
02with stationary particles, e.g. in fixed beds
04the fluid passing successively through two or more beds
0446the flow within the beds being predominantly vertical
0449in two or more cylindrical beds
0457the beds being placed in separate reactors
B01J 2208/00061
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
00026Controlling or regulating the heat exchange system
00035involving measured parameters
00044Temperature measurement
00061of the reactants
B01J 2208/00274
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
00106by indirect heat exchange
00265Part of all of the reactants being heated or cooled outside the reactor while recycling
00274involving reactant vapours
B01J 2208/00628
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00628Controlling the composition of the reactive mixture
B01J 2208/025
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
02with stationary particles
023Details
024Particulate material
025Two or more types of catalyst
B01J 2219/0004
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2219Chemical, physical or physico-chemical processes in general; Their relevant apparatus
00002Chemical plants
00027Process aspects
0004Processes in series
Applicants Schlichting Holger
Hackel Philipp Marius
Wurzel Thomas
Inventors Schlichting Holger
Hackel Philipp Marius
Wurzel Thomas
Title
(EN) PROCESS FOR PREPARING METHANOL
Abstract
(EN)

Catalytic process for the preparation of methanol, with a plurality of serial synthesis stages, in which the severity of the reaction conditions, on the basis of the reaction temperature and/or the concentration of carbon monoxide in the synthesis gas, decreases from the first to the last reaction stage in flow direction, the first reaction stage having a first catalyst of low activity but high long-term stability, and the last reaction stage having a second catalyst of high activity but low long-term stability.